ID

VAR-201706-0469

CVE

CVE-2017-6045

TITLE

Trihedral VTScada Information Disclosure Vulnerability

DESCRIPTION

An Information Exposure issue was discovered in Trihedral VTScada Versions prior to 11.2.26. Some files are exposed within the web server application to unauthenticated users. These files may contain sensitive configuration information. Trihedral VTScada (formerly known as VTS) is a SCADA system based on the Windows platform provided by Trihedral Engineering of Canada. Trihedral VTScada is prone to multiple security vulnerabilities: 1. A denial-of-service vulnerability. 2. A cross-site scripting vulnerability. 3. An information-disclosure vulnerability. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. Failed exploit attempts will likely result in denial-of-service conditions. Vendor: Trihedral Equipment: VTScada Vulnerability: Resource Consumption, Cross-Site Scripting, Information Exposure Advisory URL: https://ipositivesecurity.com/2017/06/15/ics-trihedral-vtscada-multiple-vulnerabilities/ ICS-CERT Advisory https://ics-cert.us-cert.gov/advisories/ICSA-17-164-01 ------------------------ AFFECTED PRODUCTS ------------------------ The following versions of VTScada, an HMI SCADA software, are affected: VTScada Versions prior to 11.2.26 ------------------------ IMPACT ------------------------ Successful exploitation of these vulnerabilities could result in uncontrolled resource consumption, arbitrary code execution, or information exposure. ------------------------ VULNERABILITY OVERVIEW ------------------------ UNCONTROLLED RESOURCE CONSUMPTION CWE-400 <https://cwe.mitre.org/data/definitions/400.html> The client does not properly validate the input or limit the amount of resources that are utilized by an attacker, which can be used to consume more resources than are available. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H <https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H> ). Exploitation Note that this vulnerability targets the VTScada thick client installed on the system. Any application user (including a non-admin, restricted user) who has access to the thick client can potentially bring down the system. Payload can be up to ~80k characters. Repeated attempts result in spiked CPU usage & consumption of RAM / page resources. Where a full-blown application (or multiple applications in production scenario) is deployed, i.e. with an operational/functional configuration, memory/CPU usage is notably higher than that of a test, blank application. Repeatedly submitting such a large username input, rapidly consumes available server memory resources leading to resource exhaustion. This forces a system reboot eventually. Where an endpoint security solution (such as AV/HIPS/Anti-Malware) is deployed on the system, resource exhaustion may be achieved relatively much faster (quickly). A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N <https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N> ). Exploitation Multiple URLs and parameters were found to vulnerable to Reflected Cross-Site Scripting. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N <https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N> )

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

information disclosure

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Karn Ganeshen.

SOURCES

LAST UPDATE DATE

2025-04-20T23:23:44.912000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE